MAM Update - Special August 2017

Mines and Minerals Division: 

Porcupine Mining Division Spatial Data Now Available

New data that more accurately indicates the location of unpatented mining claims, leases and patents for the Porcupine Mining Division is now available on CLAIMaps.
The updated map information represents all unpatented mining claims that have gone through the transition process for the Porcupine Mining Division – as well as updates to township lot and concession fabric, where applicable. An unpatented claim gives an exclusive right to explore the area of the claim for minerals and to use the surface rights as necessary for that exploration, along with the right to apply for a lease of the claim if all requirements under that Act are met.

To update CLAIMaps, the Provincial Recording Office staff plots the coordinates of new surveys received onto the disposition layer. That information is verified by the Ministry of Natural Resources and Forestry, then uploaded into their Land Information Ontario (LIO) database. We then review the georeferenced claims and use the best available data to adjust boundaries as needed. With the updating in place, clients are able to see the accurate location of georeferenced unpatented mining claims (mining claims that aren’t mining leases or owned by a Crown grant). Note that as staking activity continues across the province, this newer information will also need to be integrated into the updated maps over time.

With the reconciliation of unpatented claims in the Porcupine Division completed, it joins seven other divisions for which similar data can currently be viewed including Kenora, Red Lake, Patricia, Sault Ste. Marie, Sudbury, Larder Lake and southern Ontario mining divisions. We will now focus on our efforts on reconciliation of the final region, the Thunder Bay Division with data to be released in the coming months.

REMINDER – August 31/17 Deadline

Please remember that the opportunity to apply for assessment work credits for georeferencing mining claims staked prior to November 1, 2012 is ending. An amending regulation will revoke this credit effective September 1st. This means you will no longer be able to obtain $400 in assessment credit per claim unit (up to $6,400 for a 16-unit claim) after August 31st.

For additional assistance or more information on these new data sets please contact Léanne Messier at 1-888-415-9845 ext 5793 or email